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| 1 | Two efficient reliable methods for solving fractional fifth order modified Sawada-Kotera equation appearing in mathematical physics显示文摘The present paper deals with two reliable efficient methods viz.tanh-sech method and modified Kudryashov method,which are used to solve time-fractional nonlinear evolution equation.For delineating the legitimacy of proposed methods,we employ it to the time-fractional fifth-order modified Sawada-Kotera equations.As a consequence,we effectively obtained more new exact solutions for time-fractional fifth-order modified Sawada-Kotera equation.We have also presented the numerical simulations for time-fractional fifth-order modified Sawada-Kotera equation by means of three dimensional plots. | S.Saha Ray S.Sahoo | 2016 | Journal of Ocean Engineering and Science2016，1，3： | 4 |
| 2 | New exact solutions of coupled Boussinesq-Burgers equations by Exp-function method显示文摘In the present paper,we build the new analytical exact solutions of a nonlinear differential equation,specifically,coupled Boussinesq-Burgers equations by means of Exp-function method.Then,we analyze the results by plotting the three dimensional soliton graphs for each case,which exhibit the simplicity and effectiveness of the proposed method.The primary purpose of this paper is to employ a new approach,which allows us victorious and efficient derivation of the new analytical exact solutions for the coupled Boussinesq-Burgers equations. | L.K.Ravi S.Saha Ray S.Sahoo | 2017 | Journal of Ocean Engineering and Science2017，2，1： | 4 |
| 3 | New Exact Solutions of Fractional Zakharov–Kuznetsov and Modified Zakharov–Kuznetsov Equations Using Fractional Sub-Equation Method显示文摘In the present paper, we construct the analytical exact solutions of some nonlinear evolution equations in mathematical physics; namely the space-time fractional Zakharov–Kuznetsov(ZK) and modified Zakharov–Kuznetsov(m ZK) equations by using fractional sub-equation method. As a result, new types of exact analytical solutions are obtained. The obtained results are shown graphically. Here the fractional derivative is described in the Jumarie's modified Riemann–Liouville sense. | S.Saha Ray S.Sahoo | 2015 | Communications in Theoretical Physics2015，63，1： | 3 |
| 4 | A Novel Approach with Time-Splitting Spectral Technique for the Coupled Schrdinger–Boussinesq Equations Involving Riesz Fractional Derivative显示文摘In the present paper the Riesz fractional coupled Schr¨odinger–Boussinesq(S-B) equations have been solved by the time-splitting Fourier spectral(TSFS) method. This proposed technique is utilized for discretizing the Schrdinger like equation and further, a pseudospectral discretization has been employed for the Boussinesq-like equation. Apart from that an implicit finite difference approach has also been proposed to compare the results with the solutions obtained from the time-splitting technique. Furthermore, the time-splitting method is proved to be unconditionally stable. The error norms along with the graphical solutions have also been presented here. | S.Saha Ray | 2017 | Communications in Theoretical Physics2017，67，9： | 1 |
| 5 | Structural and dielectric studies of Ba (Fe1/2 Nb1/2) O3显示文摘 | S.Saha T.P Sinha | | 0，，： | 1 |
| 6 | Painlevé analysis,auto-Bäcklund transformation and new exact solutions of(2+1)and(3+1)-dimensional extended Sakovich equation with time dependent variable coefficients in ocean physics显示文摘This article considers time-dependent variable coefficients(2+1)and(3+1)-dimensional extended Sakovich equation.Painlevéanalysis and auto-Bäcklund transformation methods are used to examine both the considered equations.Painlevéanalysis is appeared to test the integrability while an auto-Bäcklund transformation method is being presented to derive new analytic soliton solution families for both the considered equations.Two new family of exact analytical solutions are being obtained success-fully for each of the considered equations.The soliton solutions in the form of rational and exponential functions are being depicted.The results are also expressed graphically to illustrate the potential and physical behaviour of both equations.Both the considered equations have applications in ocean wave theory as they depict new solitary wave soliton solutions by 3D and 2D graphs. | Shailendra Singh S.Saha Ray | 2023 | Journal of Ocean Engineering and Science2023，8，3： | 0 |
| 7 | The Petrov–Galerkin finite element method for the numerical solution of time-fractional Sharma–Tasso–Olver equation显示文摘In this paper,time-fractional Sharma-Tasso-Olver(STO)equation has been solved numerically through the Petrov-Galerkin approach utilizing a quintic B-spline function as the test function and a linear hat function as the trial function.The Petrov-Galerkin technique is effectively implemented to the fractional STO equation for acquiring the approximate solution numerically.The numerical outcomes are observed in adequate compatibility with those obtained from variational iteration method(VIM)and exact solutions.For fractional order,the numerical outcomes of fractional Sharma-Tasso-Olver equations are also compared with those obtained by variational iteration method(VIM)in Song et al.[Song L.,Wang Q.,Zhang H.,Rational approximation solution of the fractional Sharma-Tasso-Olver equation,J.Comput.Appl.Math.224:210-218,2009].Numerical experiments exhibit the accuracy and efficiency of the approach in order to solve nonlinear fractional STO equation. | A.K.Gupta S.Saha Ray | 2019 | International Journal of Modeling, Simulation, and Scientific Computing2019，10，1： | 0 |
| 8 | Higher-order approximate solutions of fractional stochastic point kinetics equations in nuclear reactor dynamics显示文摘Stochastic point kinetics equations(SPKEs) are a system of Ito? stochastic differential equations whose solution has been obtained by higher-order approximation.In this study, a fractional model of SPKEs has been analyzed. The efficiency of the proposed higher-order approximation scheme has been discussed in the results section. The solutions of SPKEs in the presence of Newtonian temperature feedback have also been provided to further discuss the physical behavior of the fractional model. | S.Singh S.Saha Ray | 2019 | Nuclear Science and Techniques2019，30，3： | 0 |
| 9 | New Optical Soliton Solutions of Nolinear Evolution Equation Describing Nonlinear Dispersion显示文摘In this work, we examine two algorithm schemes, namely, Kudryashov expansion and Auxiliary equation method for obtaining new optical soliton solutions of the discrete electrical lattice models in nonlinear scheme(Salerno equation). Our solutions obtained here are include the hyperbolic, rational, and trigonometric functions. Our two used methods are proved to be effective and powerful methods in obtaining the exact solutions of nonlinear evolution equations(NLEEs). | Saud Owyed M.A.Abdou Abdel-Haleem Abdel-Aty S.Saha Ray | 2019 | Communications in Theoretical Physics2019，71，9： | 0 |
| 10 | 长、园果种黄麻叶的性状与光合作用的研究显示文摘对长果种黄麻品种JRO-632、JRO-7835、JR-878、JRO-5408、IR—1、苏丹青茎和园果种黄麻品种JRC-212、JRC-5854、JRC-7447、JRC-412、JRC-206、EC-41338的叶比重(叶比重:叶干重/单位叶面积)气孔数和叶片中光合组织分布的差异进行研究,由于品种及麻株大小不同,黄麻叶比重差异显著,一般说来,长果种黄麻比圆果种黄麻的叶比重大些,麻株生长前期的叶比重大些, | S.Gopalakrishan S.Saha 黄培坤 | 1979 | 中国麻作1979，1，2： | 0 |
| 11 | 一步稀释对在不同冷冻保护剂中冷冻的体外受精牛胚胎体外培养和直接移植的影响显示文摘本研究的目的是确定甲基cellosolve(MC)二甘醇(DEG)、甘醇(EG)和1,2-丙三醇(1、2Propanediol PG)对冷冻的牛体外受精胚胎在支持培养基中进行体外培养和直接移植对其直接用水气是否有益的作用。 仅将具有致密卵丘且用已获能精子受精的牛卵母细胞在添加有5%超排牛血清(SCS)中,培养20—22小时(38.5℃,5%CO_2)。7—8日龄胚胎在1.3M甲基cellosolve(MC),1.1M二甘醇(DEG),1.8M甘醇(EG),1.6M丙三醇(PG)和1.1M buthylene glycol(BG)溶液中平衡10分钟,再装入0.25毫升塑料细管中,于0℃放进酒精冷冻机中,然后以-1℃/分钟从0℃降至-6℃植冰,保持10分钟,再以-0.3℃/分或-0.5℃/分降到-30℃。在将塑料管入液氮中保存。在30℃水浴中解冻后,把胚胎放入TCM-199中(内含5%SCS)培养48小时,进行胚胎的直接再水化。解冻后发育至较晚阶段且形态好的胚胎被认为是存活的。将放入每种冷冻保护剂中的某些胚胎在不去掉冷冻保护剂的情况下进行非手术移植,在冷冻 和直接再水化期间,对于保护孵化胚胎的浓度来说1.8M EG(64.3%)和1.3M MC(54.5%),1.1M DEG(60.0%)要优于其他浓空。胚胎冷冻的速度中(0.3℃/分和0.5℃/分)没有明显差异(P≤0.05),但是以0.3℃降温时,体外培养后形成孵化胚胎的比率为64.6%(31/48);而以0. | T.Suzuki M.Takagi M.Yamamoto S.Saha A.Budiono M.Oe 罗琼 | 1992 | 草食家畜1992，，S1： | 0 |
| 12 | New Exact Solutions for the Wick-Type Stochastic Kudryashov–Sinelshchikov Equation显示文摘In this article, exact solutions of Wick-type stochastic Kudryashov–Sinelshchikov equation have been obtained by using improved Sub-equation method. We have used Hermite transform for transforming the Wick-type stochastic Kudryashov–Sinelshchikov equation to deterministic partial differential equation. Also we have applied inverse Hermite transform for obtaining a set of stochastic solutions in the white noise space. | S.Saha Ray S.Singh | 2017 | Communications in Theoretical Physics2017，67，2： | 0 |
| 13 | 利用简单序列重复子研究棉花的转录基因显示文摘小随体,也称SSR(简单序列重复子)是一种在动植物中发现的顺序重复DNA序列变化最多的类型。基本结构是重复几次的少数碱基或者单个碱基对。这些重复子要么是完全顺序重复,要么是被几个非重复核苷酸打断或者是混合重复子。 | S.Saha 向平 | 2004 | 国外作物育种2004，23，2： | 0 |
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